anonymous
  • anonymous
An observer at the top of a tower of height 20m sees a man due East of him at an angle of depression of 27 degrees. He sees another man due south of him at an angle of depression of 30 degrees. Find the distance between the men on the ground. Please Help.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@.Sam.
anonymous
  • anonymous
@ganeshie8
anonymous
  • anonymous
@E.ali

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More answers

anonymous
  • anonymous
@AkashdeepDeb
yamyam70
  • yamyam70
Oh this is triangles :)
anonymous
  • anonymous
:)
yamyam70
  • yamyam70
Let me figure it out, one moment :)
anonymous
  • anonymous
thank u
anonymous
  • anonymous
for helping
phi
  • phi
as a first step, can you find the horizontal distance from the base of the tower to the man to the east ? |dw:1378908811850:dw|
anonymous
  • anonymous
let me check
phi
  • phi
this is a trig problem. soh cah toa
anonymous
  • anonymous
yes
yamyam70
  • yamyam70
I'l be going then, @phi got this :)
anonymous
  • anonymous
@phi i think the bottom angle should be 30 degrees not 27 degrees?
phi
  • phi
For the person to the east An observer at the top of a tower of height 20m sees a man due East of him at an angle of depression of 27 degrees. the depression angle is what I show in the drawing. the dashed line is parallel to the ground. the "line of sight" is a transversal, and alternate interior angles of a transversal crossing parallel lines are equal. so the angle at the bottom is also 27 degrees
anonymous
  • anonymous
i checked the answer in my book.....its 52.4........i think our diagram is wrong?
phi
  • phi
this is multiple steps. The first step is find x in the drawing. Can you do that ?
anonymous
  • anonymous
no...thats what i am having a problem in doing......if i can find x on the drawing i can easily solve the rest....but give me some time, i will try
phi
  • phi
|dw:1378909393748:dw|
phi
  • phi
SOH CAH TOA TANGENT opposite/adjacent
anonymous
  • anonymous
thats only part of the diagram
anonymous
  • anonymous
i tried doing it
phi
  • phi
yes, but you have to do it in steps. this is step 1. set up the equation \[ \tan 27 = \frac{opposite}{adjacent} \]
phi
  • phi
Fill in opposite with 20 and adjacent with x
anonymous
  • anonymous
i have already done that.......it is 39.25
phi
  • phi
ok, now step 2 Find y, the horizontal distance from the tower to the man to the south
anonymous
  • anonymous
i tried this also.....but it failed |dw:1378909637114:dw|
anonymous
  • anonymous
i figured it out....its a 3d figure
anonymous
  • anonymous
thanks for the help
anonymous
  • anonymous
gtg....very urgently
phi
  • phi
The idea is to focus just on this picture: a 20 m tower looking down with a depression angle of 30 degrees (don't worry about 3-Dim ) |dw:1378909857799:dw|
phi
  • phi
once you find y, you have this picture (looking down from high overhead) |dw:1378909954533:dw|
Error1603
  • Error1603
|dw:1453823916797:dw|

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